silver plated copper alloy
... 触点形式 ： SPDT 触点电镀 ： Silver Plated Copper Alloy 执行器 ： Round ...
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silver plated copper alloy
镀银铜合金
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Many French horns, for example, are made of nickel silver, an alloy of copper, zinc, and nickel (it's silver in name and color only), and some are made of nickel bronze, an alloy of copper, tin, and nickel. (Brass itself is an alloy of copper and zinc.) Many brass instruments are silver-plated (sterling silver on brass), and some are gold-plated.
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